Technical Articles

Practical articles, in-depth tutorials, and architectural insights on software engineering, AI, and systems.

All categories Arquitetura Automação Backend Carreira DevOps Eletrônica Engenharia Frontend Hardware IA Negócios Produtividade Redes

DevOps•12 min

Distributed Tracing with OpenTelemetry and Context Propagation in Microservices

Learn how to implement end-to-end traceability and context propagation in microservices using OpenTelemetry, reducing latency and diagnosing bottlenecks in production.

Backend•12 min

Table Partitioning and Partial Indexes in PostgreSQL for High-Volume Node.js Applications

Learn how to structure multi-million row log tables using range partitioning and partial indexes in PostgreSQL, integrated with Node.js connection pools to sustain high performance under extreme concurrency.

RedesDevOps•12 min

WireGuard Protocol in Overlay Networks: Layer 3 Tunnels and Mesh Topologies

Learn how to build secure overlay networks with WireGuard and ChaCha20-Poly1305 encryption to interconnect datacenters and multi-cloud environments with high performance.

AutomaçãoRedes•12 min

Hybrid Integration Architecture in Building Management Systems: Unifying BACnet and Modbus RTU

Learn how to unify BACnet IP networks and legacy Modbus RTU devices in modern Building Management Systems (BMS). We explore secure tunneling, polling exception handling, and latency mitigation in critical environments.

Engenharia•12 min

Refactoring Legacy Systems: Characterization Tests and Golden Master

Learn how to apply Test-Driven Refactoring in complex codebases without prior unit tests. Use characterization tests and the Golden Master technique to evolve legacy software safely.

DevOps•12 min

Blue-Green Deployments and Zero-Downtime with Docker Swarm and Traefik Proxy

Learn how to build a continuous delivery architecture with zero downtime using Docker Swarm and Traefik Proxy for dynamic routing in production environments.

DevOpsRedes•11 min

How to Calculate the MD5 Hash of a String or Configuration File via Console

Learn how to generate MD5 digital signatures in Linux, macOS, and Windows environments using the command line to validate data integrity and configuration files.

DevOps•12 min

Understanding Read, Write and Execute Permissions on Linux Directories

Learn how read, write, and execute permissions work on Unix and Linux directories to prevent critical security flaws and access issues.

HardwareDevOps•10 min

How to Check Processor Architecture with the uname -m Command

Learn how to use the uname -m command on Unix and Linux systems to quickly identify whether your processor uses x86_64 or ARM64 architecture, preventing software compatibility failures.

BackendArquitetura•12 min

What a file inode number represents in the filesystem

Discover the fundamental role of inodes in Unix and Linux filesystems. Understand how the inode number manages metadata, permissions, and links without duplicating data.